<?PHP  // $Id: preferences.php,v 1.19.2.2 2008/01/24 14:10:45 nicolasconnault Exp $
	   // preferences.php - user prefs for calendar

	require_once('../config.php');
	require_once($CFG->dirroot.'/calendar/lib.php');

	if (isset($SESSION->cal_course_referer)) {
		if (! $course = get_record('course', 'id', $SESSION->cal_course_referer)) {
			$course = get_site();
		}
	}

	if ($course->id != SITEID) {
		require_login($course->id);
	}
	// Initialize the session variables
	calendar_session_vars();

/// If data submitted, then process and store.

	if ($form = data_submitted()) {
		foreach ($form as $preference => $value) {
			switch ($preference) {
				case 'timeformat':
					if ($value != CALENDAR_TF_12 and $value != CALENDAR_TF_24) {
						$value = '';
					}
					set_user_preference('calendar_timeformat', $value);
				break;
				case 'startwday':
					$value = intval($value);
					if ($value < 0 or $value > 6) {
						$value = abs($value % 7);
					}
					set_user_preference('calendar_startwday', $value);
				break;
				case 'maxevents':
					if (intval($value) >= 1) {
						set_user_preference('calendar_maxevents', $value);
					}
				break;
				case 'lookahead':
					if (intval($value) >= 1) {
						set_user_preference('calendar_lookahead', $value);
					}
				break;
				case 'persistflt':
					set_user_preference('calendar_persistflt', intval($value));
				break;
			}
		}
		redirect('view.php?course='.$course->id, get_string('changessaved'), 1);
		exit;
	}

	$site = get_site();

	$strcalendar = get_string('calendar', 'calendar');
	$strpreferences = get_string('preferences', 'calendar');

	$navlinks = array();
	if ($course->id != SITEID) {
		$navlinks[] = array('name' => $course->shortname,
							'link' => "$CFG->wwwroot/course/view.php?id=$course->id",
							'type' => 'misc');
	}
	$navlinks[] = array('name' => $strpreferences, 'link' => 'view.php', 'type' => 'misc');
	$navigation = build_navigation($navlinks);

	print_header("$site->shortname: $strcalendar: $strpreferences", $strcalendar, $navigation,
				 '', '', true, '', user_login_string($site));


	print_heading($strpreferences);

	print_simple_box_start("center");

	$prefs->timeformat = get_user_preferences('calendar_timeformat', '');
	$prefs->startwday  = get_user_preferences('calendar_startwday', CALENDAR_STARTING_WEEKDAY);
	$prefs->maxevents  = get_user_preferences('calendar_maxevents', CALENDAR_UPCOMING_MAXEVENTS);
	$prefs->lookahead  = get_user_preferences('calendar_lookahead', CALENDAR_UPCOMING_DAYS);
	$prefs->persistflt = get_user_preferences('calendar_persistflt', 0);

	include('./preferences.html');
	print_simple_box_end();

	print_footer($course);

?>
